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Cortisol Baseline Response
MessageFor Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.
Test Code
CORTB
Alias/See Also
Cortisol Level;
Cortisone;
Hydrocortisone;
Hydroxycorisone;
Cortisol (serum);
Cortisol Level (serum)
Cortisone;
Hydrocortisone;
Hydroxycorisone;
Cortisol (serum);
Cortisol Level (serum)
CPT Codes
82533
Preferred Specimen
SST/GST Serum Only
Minimum Volume
1 mL
Other Acceptable Specimens
plasma from Lithium Heparin (Light Green Top)tube
Instructions
Barrier tubes (serum separator tubes or plasma separator tubes) are preferred.
Red top serum unacceptable for testing.
Collection notes: Avoid hemolysis. Invert tubes at least 8 times. Allow to clot in an upright position for 30 minutes. Within 2 hours, centrifuge tubes 10 minutes. Keep tightly stoppered. Do NOT re-centrifuge tubes. Do NOT freeze the primary collection tube.
Red top serum unacceptable for testing.
Collection notes: Avoid hemolysis. Invert tubes at least 8 times. Allow to clot in an upright position for 30 minutes. Within 2 hours, centrifuge tubes 10 minutes. Keep tightly stoppered. Do NOT re-centrifuge tubes. Do NOT freeze the primary collection tube.
Transport Container
Original tube preferred, may be sent in a screw-top transfer tube.
Transport Temperature
Refrigerated
Specimen Stability
Room Temperature = 4 days
Refrigerated = 4 days
Frozen = 3 months
Refrigerated = 4 days
Frozen = 3 months
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis, Lipemia, incorrect specimen type, insufficient sample volume, improper storage conditions, exceeds specimen stability guidelines, contaminated sample.
Methodology
Immunoassay
Setup Schedule
24/7
Report Available
Daily
Clinical Significance
Cortisol is increased in Cushing's Disease and decreased in Addison's Disease (adrenal insufficiency).
Performing Laboratory
CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine, Ohio 45439
Last Updated: February 2, 2022